Measurement E151M2199

Experiment:	EG4
Year:	2016	Experiment comment: Final asymmetry results for the ep-> e pi+ (n) channel extracted from CLAS/EG4 data obtained using a longitudinally polarized beam and a longitudinally polarized NH3 target (CAA HS07-02).
Spokesperson:	Xiaochao Zheng
Reaction:	ep → π⁺n
Polarization:	beam (longitudinal), target (longitudinal)
Quantity:	A_LL
ε_L:	0.9956
Q²:	0.5925 GeV²
W:	1295.0 GeV
E_beam:	2.999 GeV
ε:	0.9208

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.55	66.0	0.3968	0.859
0.55	90.0	0.4595	0.8415
0.55	270.0	0.6846	0.7946
0.65	66.0	0.8962	0.7223
0.65	90.0	-0.0394	0.7569
0.65	270.0	-0.147	0.8153
0.65	282.0	0.0859	0.8239
0.65	294.0	0.4714	0.7382
0.65	306.0	0.3272	0.849
0.75	78.0	-0.9496	0.6415
0.75	90.0	-0.7298	0.7585
0.75	102.0	-0.4872	0.8461
0.75	258.0	1.3092	0.6004
0.75	270.0	-0.0117	0.7979
0.75	282.0	-1.2372	0.5925
0.75	294.0	0.3593	0.7394
0.75	306.0	1.509	0.6391
0.75	318.0	0.0052	0.7525
0.85	234.0	0.4732	0.8045
0.85	258.0	1.5588	0.6689
0.85	270.0	-0.1841	0.6209
0.85	282.0	0.1834	0.8034
0.85	294.0	-0.4436	0.7116
0.85	306.0	1.1744	0.6723
0.95	90.0	1.5523	0.5759

CLAS Physics Database